Granted Patent
Utility
US 4,357,637 · App. 06/288,098
Preamplifier circuit
Inventor:
Ted B. Gilbert
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Jul 29, 1981
Inventor
Ted B. Gilbert
Assignee (at issue)
Honeywell Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.